[quote=@Host]
<Snipped quote by whizzball1>

THATS CREEPY. SPIRIT'S OLD. 
[/quote]

Does he look old? Does he feel old? No. He looks like a 20-year-old when he's in human form. And he constantly has the influence of a million little kids to keep him acting young and less boring, too. Literally the only thing old about him is his wisdom and knowledge gained over a million years.